Question

One of the acute angles of a right triangle is 36°. find the other.

Answer 1

Sum of the angles of a triangle is 180°.
Suppose the other angle measures x.

It is a right angle triangle. Hence, one of the angle is 90°.

$$\begin{gathered} \therefore 36°+90°+x=180° \\ x=54° \end{gathered}$$
Hence, the other angle measures 54°.